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Setler79 [48]
3 years ago
14

A medium-sized apple has 70 calories. this is 10 calories less than 1/4 of the calories in an old westie chocalate bar. we need

to find out how many calories are in chocalate bars?
Mathematics
1 answer:
Anna [14]3 years ago
3 0
70 + 10 = 1/4 of a chocolate
80 x 4 = a chocolate.
320 calories in a chocolate.
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Answer:

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Step-by-step explanation:

<u>Equation of a Polynomial</u>

Given the roots x1, x2, and x3 of a cubic polynomial, the equation can be written as:

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Where a is the leading coefficient.

We know the three roots of the polynomial -6, -3, and 1, thus:

P(x)=a(x+6)(x+3)(x-1)

Since the y-intercept of the polynomial is y=90 when x=0:

90=a(0+6)(0+3)(0-1)

90=a(6)(3)(-1)=-18a

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The polynomial is:

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We must write it in standard form, so we have to multiply all of the factors as follows:

P(x)=-5(x^2+6x+3x+18)(x-1)

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P(x)=-5(x^3-x^2+9x^2-9x+18x-18)

P(x)=-5(x^3+8x^2+9x-18)

\boxed{P(x)=-5x^3-40x^2-45x+90}

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Answer:

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